Specifications

Integrating Voice Mail with Cisco SRST
How to Integrate Voice Mail with Cisco SRST
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Cisco IOS Survivable Remote Site Telephony Version 3.4 System Administrator Guide
Examples
The following example specifies 1101 as the speed-dial number that is issued when message buttons are
pressed on Cisco IP phones connected to the Cisco SRST router. All busy and unanswered calls are
configured to be forwarded to the voice-mail number (1101).
call-manager-fallback
voicemail 1101
call-forward busy 1101
call-forward noan 1101 timeout 3
Redirecting to Cisco CallManager Gateway
Note The following task is required for voice-mail systems with BRI or PRI access.
In addition to supporting message buttons for retrieving personal messages, Cisco SRST allows the
automatic forwarding of calls to busy and unanswered numbers to voice-mail systems. Voice-mail
systems with BRI or PRI access can log in to the calling phone’s mailbox directly. For this to happen,
some Cisco CallManager configuration is recommended. If your voice-mail system supports Redirected
Dialed Number Identification Service (RDNIS), RDNIS must be included in the outgoing SETUP
message to Cisco CallManager to declare the last redirected number and the originally dialed number to
and from configured devices and applications.
Step 1 From any page in Cisco CallManager, click Device and Gateway.
Step 2 From the Find and List Gateways page, click Find.
Step 3 From the Find and List Gateways page, choose a device name.
Step 4 From the Gateway Configuration page, check Redirecting Number IE Delivery - Outgoing.
Configuring Call Forwarding to Voice Mail
Note The following task is required for voice-mail systems with FXO or FXS access.
In addition to supporting message buttons for retrieving personal messages, Cisco SRST allows the
automatic forwarding of calls to busy or unanswered numbers to voice-mail systems. The forwarded
calls can be routed to almost any location in the voice-mail system. Typically, calls are forwarded to a
location in the called number’s mailbox where the caller can leave messages.